Grodan cutting tray 77 tray

Grodan Cutting Tray 77 Tray Product Description: Grodan rockwool blocks are ideal for growing seeds or cuttings. They can be used in any substrate and can also be integrated into any irrigation system. The blocks are not pre-fertilized. The cutting trays can be easily cut to size, making them suitable for use in any greenhouse. The hole in the bottom of the tray allows water to drain well and air to reach the roots. The rockwool blocks have a neutral pH of 7.0 in their initial state. Soak the Grodan rockwool blocks thoroughly before use. Dimensions (rockwool block): 4 x 4 x 4.5 cm. Dimensions (cutting tray): 52 x 31 cm.